Yet California's beaches are ephemeral "rivers of sand" in constant motion due to erosional and depositional processes.

Some of these processes are natural; others result from human intervention. If beaches are to be preserved into the future, it is essential to understand the flow of energy and sediment through coastal areas.
Coastal Basics summarizes the primary processes that shape our coast.

Sunset over Santa Monica Beach. Photographer - permission pending

Use this knowledge and take part in decision-making to preserve the future value of our precious coast.